The following are the specific functionins of GCDA:

To guide urban development by checking urban sprawl and promoting health growth of urban and rural areas through long term, short term and action area oriented detailed development plans.

Preparation and notification of draft general and Detailed Town Planning Schemes in consultation with the Town Planning Department.

Implementation of General and Detailed Town Planning Schemes sanctioned by Government.

To co-ordinate the activities of the various agencies (After the 73rd and 74th Constitutional Amendment Act and subsequent Kerala Municipalities Act of 1994, the role of GCDA is to be redefined and the enactment of new Town and Country Planning Act is awaited.)

To monitor and implement the plans and proposals through public participation, timely revision and by prioritizing proposal

To determine the phasing of development providing open spaces and recreational facilities depending on the needs of the region.